Rapid urease test Lab medicine A diagnostic test performed during a gastric Bx to detect H pylori. See Helicobacter pylori.
CLO test
Campylobacter-like organism test; an assay to determine the presence of urea-splitting organisms in the upper gastrointestinal tract. The test is one of several used to diagnose whether or not ulcers or gastritis are caused by Helicobacter pylori.